Thanks for this. Same issue here after 5.0.3 upgrade.
DeadStinky’s map solution worked for me to get the project opened again. After deleting the one animation in the log file that caused the crash, a new animSequence would spark it every time. We are about a year into production with around 1000 animations in the project, so waiting for a crash then reload to find the next file became laborious fast.
What worked for me, after loading the project into a empty map:
- Clear EditorStartupMap= in DefaultEngine.ini
- Open project
- Navigate into the content browser at root /content/
- Filter assets > animation sequence
- Select all
- Right click on any anim to bring up the asset options
For me this forced the engine to reload all of the animations in the project and clear the !bCompressionInProgress error without having to delete and reimport any files
Afterwards, open up the main project level, hit play to confirm then save. For me the animations did were reset if the project was not saved.
If the right click option does not reload the assets it may help to open each one individually.
Or go through each asset in the animation window asset browser and look for a yellow warning message under the “Previewing Animation filename”. It will say something like “Animation editing in progress, save to complete compression”. I do not remember the exact wording. If found there is the Apply Compression button.